Charles morrill



(No Model.)

0. MORRILL.

ANVIL FOR SAW SETS. No; 577,559, Patented Feb.23,1897.

i .1. 7 Fig.2.

WITNESSES: INVENTOI? Y W ATTORNEY PATENT Erica,

CHARLES MORRILL, OF NEW YORK, N. Y.

ANVIL FOR SAW-SETS.

SPECIFICATION forming part of Letters Patent No. 577,559, dated February23, 1897.

Application filed January 18,1896. Serial No. 576,014. (No model.)

To all whont it may concern:

Be it known that 1, CHARLES MORRILL, a citizen of the United States ofAmerica, and a resident of the city, county, and State of New York, haveinvented a new and useful Improvement in Anvils for Saw-Sets, of whichthe following is a specification.

My invention relates to an adjustably-rotative anvil for saw-sets, andhas for its object the production of a saw-set anvil that requires nofurther adjustment than turning the round disk to the number indicatedon its periphery to correspond to the number of teeth in the saw to beset, and that when such adjustment is made the anvil will present a facehaving sufficient slant to meet the requirements of the thickness ofmetal, the coarseness of teeth, and unequal depth of the teeths surface,as found in old saws; and to that end the invention consists of a rounddisk of steel having its rear surface at right angles to its sides, toits axis, and to its line of thrust, and its face and outer edge orworking surface turnedeccentrically and slanting with relation to thecircumferential line of its sides, the eccentric plane diverging into anincline which terminates in a plane arranged obliquely to the axis ofthe anvil, said obliqueness differing in all parts of the circumferenceof the face thus chamfered off.

In the drawings, Figure 1 represents an enlarged view of the adjustableanvil. Fig. 2 is a face view of the same. Fig. 3 is an enlarged viewshowing part of the anvil, a section of the saw, and a tooth which hasbeen swaged or set over onto the beveled edge of the anvil-face. Fig. 4is an enlarged view of several saw-teeth, the dotted line indicating theline upon which the teeth are set. Fig. 5 is a similar view of severalteeth of unequal length, given to illustrate the capability of equalsetting regardless of irregularity; and

Fig. 6 represents a longitudinal sectional View of a saw-set in which isshown the manner of applying my invention thereto and its relation tothe working parts of the same.

Similar letters refer to similar parts throu ghout the drawings, inwhich- A represents the adjustably-rotative anvil; B, thevertically-arranged eccentric and concentric plane, and O the beveledsurface having varying angles of obliqueness around its entire surface.

The anvil is held in place in the head of the saw-set by any suitablemeans. In the present instance I use a pin having a head the body ofwhich passes through the opening E, provided in the center of the anvil,and the head filling the countersunk space flush with the face of theanvil. The front part of the pin passes through an opening provided inthe head of the frame. The projecting part of the pin has an openingthrough its side for the reception of a latch-pin, and the pin issurrounded bya coiled spring which draws the back of the anvil withconsiderable friction against the head of the frame, thus insuring atight bearing which prevents the anvil from working loose when once setand in use.

In order to illustrate the practical operation of the invention, Iconnect it to a sawset frame such as now in use and for which LettersPatent have been granted to me.

By reference to the drawing Fig. 6 it will be seen that the anvil A ismounted vertically to the head of the frame E, the lower depending lipF,c arryin g the adj listing-screw G, the setting bar or plunger Hpassing longitudinally through its body and surrounded by a coiledspring J, located in a cavity provided in the casting, and the pivotedleverhandle K, secured to the projecting shoulders by a pin or screw.

I do not limit the scope of my invention in its application to thisparticular construction of saw-set frame, as it is obvious that it couldbe applied to a saw-set frame having a horizontally-located bed-plate,to which my anvil could be attached, in combination with avertically-moving plunger sliding between guideways and acted upon byaweight, a cam, a spring, or any mechanical equivalent, and

yet produce the same result with saws of a heavier-gage steel whichcould not be bent by hand.

To operate the saw-set, it is first necessary to ascertain the number ofteeth to the inch the saw contains. The adjustable anvil should then beturned around until the number indicated on its side to which you desireto set it shall have reached the place where the plunger-point comesinto action and the blade of the saw is placed against the face of theanvil, the amount of incline it should have being regulated by the adjHSlJlUg-SCIGW point. The handles are pressed together, forcing theplunger forward to where it engages the upper part of the tooth, asshown at 2 in Fig. 4, forcing it against the incline O on the a11- viland thence upon the Obliquelyarranged plane D, thus turning the point ofthe tooth in an oblique direction corresponding to the degree ofobliqueness that particular part of the anvil might possess at thattime.

It is obvious that saw-teeth of any depth of irregularity caused bycareless filing will be set perfectly on the same pitch-line regardlessof their inequality of length.

I am aware that rotative anvils have here tofore been made and providedwith a series of radially-arranged inclined and plane surfaces forbending the teeth of saws from the plane thereof and bending a portionof the tooth back parallel therewith. This invention could not be usedfor setting the teeth of hand-saws as designed by my invention.

I claim 1. In a saw-set the combination of the frame, the inclined adjListing-screw mounted in the frame, the setting bar or plunger, thehandle for operating the plunger, the rigid handle and the rotaryadjustable anvil; said anvil havingindiees or figures on its periphcryand having the inclined oblique working surface and the flat edgecontiguous to said surface for turning up the teeth of the saw andfixing the angle thereof, substantially as described.

2. In a device for setting the teeth of sawscomprisingasupporting-frame, and plunger, a rotary adjustable anvilprovided with the annular inclined oblique working surface and the flatannular edge contiguous to said surface for turning back the teeth ofsaws and fixing the angle thereof, substantially as described.

In testimony that I claim the foregoing as my invention Ihave signed myname, in presence of two witnesses, this 13th day of January, 1896.

CHAS. MORRILL.

Witnesses:

D. S. DOLBEAR, W. H. VAN Voonrns.

